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Pull driver core and debugfs updates from Greg KH:
"Here is the "big" driver core and debugfs changes for 5.3-rc1
It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups.
Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way
- cleanups to Documenatation/ABI/ entries to make them parse easier
due to typos and other minor things
- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of
merge issues that Stephen has been patient with me for"
* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
debugfs: make error message a bit more verbose
orangefs: fix build warning from debugfs cleanup patch
ubifs: fix build warning after debugfs cleanup patch
driver: core: Allow subsystems to continue deferring probe
drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
arch_topology: Remove error messages on out-of-memory conditions
lib: notifier-error-inject: no need to check return value of debugfs_create functions
swiotlb: no need to check return value of debugfs_create functions
ceph: no need to check return value of debugfs_create functions
sunrpc: no need to check return value of debugfs_create functions
ubifs: no need to check return value of debugfs_create functions
orangefs: no need to check return value of debugfs_create functions
nfsd: no need to check return value of debugfs_create functions
lib: 842: no need to check return value of debugfs_create functions
debugfs: provide pr_fmt() macro
debugfs: log errors when something goes wrong
drivers: s390/cio: Fix compilation warning about const qualifiers
drivers: Add generic helper to match by of_node
driver_find_device: Unify the match function with class_find_device()
bus_find_device: Unify the match callback with class_find_device
...
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When calling debugfs functions, there is no need to ever check the
return value. The function can work or not, but the code logic should
never do something different based on this.
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not write to the free
software foundation inc 59 temple place suite 330 boston ma 02111
1307 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 136 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.384967451@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Don't populate the const array read_ver_cmd on the stack but instead
make it static. Makes the object code smaller by 42 bytes:
Before:
text data bss dec hex filename
17262 6928 192 24382 5f3e drivers/misc/ti-st/st_kim.o
After:
text data bss dec hex filename
17156 6992 192 24340 5f14 drivers/misc/ti-st/st_kim.o
(gcc version 8.2.0 x86_64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We already have the DEFINE_SHOW_ATTRIBUTE.There is no need to define
such a macro,so remove GENWQE_DEBUGFS_RO.Also use DEFINE_SHOW_ATTRIBUTE
to simplify some code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Free resources instead of direct return of the error code if kim_probe
fails.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.
Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Variable type is being assigned but is never used hence it is
redundant and can be removed.
Cleans up clang warning:
warning: variable 'type' set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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kim_probe() is never called in atomic context.
This function is only set as ".probe" in struct platform_driver.
Despite never getting called from atomic context,
kim_probe() calls kzalloc() with GFP_ATOMIC,
which does not sleep for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
which can sleep and improve the possibility of sucessful allocation.
This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work with
const attribute_group. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A common pattern with skb_put() is to just want to memcpy()
some data into the new space, introduce skb_put_data() for
this.
An spatch similar to the one for skb_put_zero() converts many
of the places using it:
@@
identifier p, p2;
expression len, skb, data;
type t, t2;
@@
(
-p = skb_put(skb, len);
+p = skb_put_data(skb, data, len);
|
-p = (t)skb_put(skb, len);
+p = skb_put_data(skb, data, len);
)
(
p2 = (t2)p;
-memcpy(p2, data, len);
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-memcpy(p, data, len);
)
@@
type t, t2;
identifier p, p2;
expression skb, data;
@@
t *p;
...
(
-p = skb_put(skb, sizeof(t));
+p = skb_put_data(skb, data, sizeof(t));
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-p = (t *)skb_put(skb, sizeof(t));
+p = skb_put_data(skb, data, sizeof(t));
)
(
p2 = (t2)p;
-memcpy(p2, data, sizeof(*p));
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-memcpy(p, data, sizeof(*p));
)
@@
expression skb, len, data;
@@
-memcpy(skb_put(skb, len), data, len);
+skb_put_data(skb, data, len);
(again, manually post-processed to retain some comments)
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On mips and parisc:
drivers/bluetooth/btwilink.c: In function 'ti_st_open':
drivers/bluetooth/btwilink.c:174:21: warning: overflow in implicit constant conversion [-Woverflow]
hst->reg_status = -EINPROGRESS;
drivers/nfc/nfcwilink.c: In function 'nfcwilink_open':
drivers/nfc/nfcwilink.c:396:31: warning: overflow in implicit constant conversion [-Woverflow]
drv->st_register_cb_status = -EINPROGRESS;
There are actually two issues:
1. Whether "char" is signed or unsigned depends on the architecture.
As the completion callback data is used to pass a (negative) error
code, it should always be signed.
2. EINPROGRESS is 150 on mips, 245 on parisc.
Hence -EINPROGRESS doesn't fit in a signed 8-bit number.
Change the callback status from "char" to "int" to fix these.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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complete_all() should only be called once, doing it twice is a clear bug.
8565adbc8214 ("drivers/misc/ti-st: fix read fw version cmd") added the
additional complete_all() call. Since we call complete_all() when
leaving the function we can drop the complete_all() call inside
true branch of the if statement.
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Cc: Pavan Savoy <pavan_savoy@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The pr_debug() will never be executed.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The wake up method is called with the port lock held. The st_int_write
method calls port->ops->write with tries to acquire the lock again,
causing CPU to wait infinitely. Right way to do is to write data to port
in worker thread.
Signed-off-by: Muhammad Hamza Farooq <mfarooq@visteon.com>
Signed-off-by: Jacob Siverskog <jacob@teenage.engineering>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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GPIO accessor functions may sleep.
Signed-off-by: Jürg Billeter <j@bitron.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 46d0d33350e9b32642d745a8b46a954910196b4d.
This binding is horrible and never should have been merged. It is not
documented nor are there any in tree users, so reverting it will not
break anything we care about. Lets revert it before we do have users.
The problems with it are:
- It is not documented.
- The GPIO connection is described with a custom property and uses Linux
GPIO numbering.
- The UART connection is described using the Linux tty device name.
Cc: Gigi Joseph <gigi.joseph@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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i2c_driver does not need to set an owner because i2c_register_driver()
will set it.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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static analysis with smatch picked up the following error:
get_platform_data() error: potential null dereference 'dt_pdata'.
(kzalloc returns null)
Instead, the code should return NULL to avoid the following null
pointer deference. Also, remove the error message as it is
redundant, the caller emits an error message to alert of a
failure anyhow.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The big issue here is:
of_property_read_u32(np, "flow_cntrl", (u32 *)&dt_pdata->flow_cntrl);
"->flow_cntrl" is a char so when we write a 32 bit number to it then it
corrupts past the end of the char. It's probably hard to notice because
the struct has padding so the code works on little endian systems. But
on a big endian system the code would fail and on a 64 bit, big endian
systems then "nshutdown_gpio" and "baud_rate" would be buggy as well.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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if(!wait_for_completion_interruptible_timeout(...))
only handles the timeout case - this patch adds handling the
signal case the same as timeout.
Only the timeout case was being handled, the signal case
(-ERESTARTSYS) was treated just like the case of successful
completion, which is most likely not reasonable.
read_local_version() is called from download_firmware() where
it checks for !=0 return, so the error handling logic should be
preserved correctly.
download_firmware() is called from st_kim_start() which is
checking for !=0 return, so the error handling logic should be
preserved correctly
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We encounter situations where we got bad packet type from the
UART (probably due to platform problem or UART driver issues)
which caused us out of boundary array access,
which eventually led to kernel panic.
Signed-off-by: Amir Ayun <amira@ti.com>
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Leonid Iziumtsev <x0153368@ti.com>
Signed-off-by: Gigi Joseph <gigi.joseph@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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st_kim_ref() does not take care of the fact that platform_get_drvdata() might return NULL. On AM437x EVM, this causes the platform to stop booting as soon as the module is inserted.
This patch fixes the issue by checking for NULL return value. Oops log follows.
I have not tested BT functionality after this patch. But at least the platform boots now.
[ 12.675697] Unable to handle kernel NULL pointer dereference at virtual address 0000005c
[ 12.684310] pgd = c0004000
[ 12.687157] [0000005c] *pgd=00000000
[ 12.690927] Internal error: Oops: 17 [#1] SMP ARM
[ 12.695873] Modules linked in: btwilink bluetooth ti_vpfe dwc3(+) ov2659 videobuf2_core v4l2_common videodev ti_am335x_adc 6lowpan_iphc matrix_keypad panel_dpi kfifo_buf pixcir_i2c_ts media industrialio videobuf2_dma_contig c_can_platform videobuf2_memops dwc3_omap c_can can_dev
[ 12.721969] CPU: 0 PID: 1235 Comm: kworker/u3:0 Not tainted 3.14.25-02445-g9036ac6daed6 #128
[ 12.730937] Workqueue: hci0 hci_power_on [bluetooth]
[ 12.736165] task: ebd93b40 ti: ecd7c000 task.ti: ecd7c000
[ 12.741856] PC is at st_kim_ref+0x30/0x40
[ 12.746071] LR is at st_kim_ref+0x30/0x40
[ 12.750289] pc : [<c03caf58>] lr : [<c03caf58>] psr: a0000013
[ 12.750289] sp : ecd7de08 ip : ecd7de08 fp : ecd7de1c
[ 12.762365] r10: bf1e710c r9 : bf1e70ec r8 : bf1e7964
[ 12.767858] r7 : ebd2fd50 r6 : bf1e7964 r5 : 00000000 r4 : ecd7de24
[ 12.774723] r3 : c0957208 r2 : 00000000 r1 : c0957208 r0 : 00000000
[ 12.781589] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 12.789274] Control: 10c5387d Table: abde4059 DAC: 00000015
[ 12.795315] Process kworker/u3:0 (pid: 1235, stack limit = 0xecd7c248)
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Gigi Joseph <gigi.joseph@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In case the debugfs creation fails the whole init process was failing.
There is no need to do this as the shared transport can work without it.
Fix it so it just reports the failure and continue.
Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Gigi Joseph <gigi.joseph@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend/resume was failing if callbacks were not registered.
As it is ok not to do anything when suspending fix this
so it soen't return an error and allow the system to suspend.
Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Gigi Joseph <gigi.joseph@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When using device tree, driver configuration data need to be read from
device node.
Add support for getting the platform data information from the device
tree information stored in the .dtb file in case it exists.
Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: bvijay <bvijay@ti.com>
Diff rendering mode:inlineside by side
Signed-off-by: Gigi Joseph <gigi.joseph@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A platform_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Coverity reported:
This less-than-zero comparison of an unsigned value is never true.
In answer to that, we only ever decrement if protos_registered is
positive. We can subsequently remove the paranoid checking during
unregister.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Looks like the default location for TI firmware is inside the ti-connectivity
directory, to be coherent with other firmware request used by TI drivers, load
the TIInit firmware from this directory instead of /lib/firmware directly.
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>. Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The tty core provides an interface for flushing the driver's
write buffer: tty_driver_flush_buffer(); prefer the provided
interface over open-coded. Open-coding can lead to errors
such as the duplicated call in the st_kim driver.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use this new function to make code more comprehensible, since we are
reinitialzing the completion, not initializing.
[akpm@linux-foundation.org: linux-next resyncs]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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If st_kim_start() fails registered protocols should be removed. This is
done by calling st_reg_complete(), which as comment states is called
with spin lock held. But in st_register() when st_kim_start fails it
is called without holding spin lock, creating possibility of concurrent
access to st_gdata data members.
Hold spin lock while calling st_reg_complete if st_kim_start() fails.
Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@globallogic.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pull char/misc driver patches from Greg Kroah-Hartman:
"Here's the big char/misc driver patches for 3.9-rc1.
Nothing major here, just lots of different driver updates (mei,
hyperv, ipack, extcon, vmci, etc.).
All of these have been in the linux-next tree for a while."
* tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (209 commits)
w1: w1_therm: Add force-pullup option for "broken" sensors
w1: ds2482: Added 1-Wire pull-up support to the driver
vme: add missing put_device() after device_register() fails
extcon: max8997: Use workqueue to check cable state after completing boot of platform
extcon: max8997: Set default UART/USB path on probe
extcon: max8997: Consolidate duplicate code for checking ADC/CHG cable type
extcon: max8997: Set default of ADC debounce time during initialization
extcon: max8997: Remove duplicate code related to set H/W line path
extcon: max8997: Move defined constant to header file
extcon: max77693: Make max77693_extcon_cable static
extcon: max8997: Remove unreachable code
extcon: max8997: Make max8997_extcon_cable static
extcon: max77693: Remove unnecessary goto statement to improve readability
extcon: max77693: Convert to devm_input_allocate_device()
extcon: gpio: Rename filename of extcon-gpio.c according to kernel naming style
CREDITS: update email and address of Harald Hoyer
extcon: arizona: Use MICDET for final microphone identification
extcon: arizona: Always take the first HPDET reading as the final one
extcon: arizona: Clear _trig_sts bits after jack detection
extcon: arizona: Don't HPDET magic when headphones are enabled
...
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This resolves a number of tty driver merge issues found in linux-next
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit eccf2979b2c034b516e01b8a104c3739f7ef07d1.
The reason is that it broke TI WiLink shared transport on Panda.
Also, callback functions should not be added to board files anymore,
so revert to implementing the power functions in the driver itself.
Additionally, changed a variable name ('status' to 'err') so that this
revert compiles properly.
Cc: stable <stable@vger.kernel.org> [3.7]
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit eccf2979b2c034b516e01b8a104c3739f7ef07d1.
The reason is that it broke TI WiLink shared transport on Panda.
Also, callback functions should not be added to board files anymore,
so revert to implementing the power functions in the driver itself.
Additionally, changed a variable name ('status' to 'err') so that this
revert compiles properly.
Cc: stable <stable@vger.kernel.org> [3.7]
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The option allows you to remove TTY and compile without errors. This
saves space on systems that won't support TTY interfaces anyway.
bloat-o-meter output is below.
The bulk of this patch consists of Kconfig changes adding "depends on
TTY" to various serial devices and similar drivers that require the TTY
layer. Ideally, these dependencies would occur on a common intermediate
symbol such as SERIO, but most drivers "select SERIO" rather than
"depends on SERIO", and "select" does not respect dependencies.
bloat-o-meter output comparing our previous minimal to new minimal by
removing TTY. The list is filtered to not show removed entries with awk
'$3 != "-"' as the list was very long.
add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350)
function old new delta
chr_dev_init 166 170 +4
allow_signal 80 82 +2
static.__warned 143 142 -1
disallow_signal 63 62 -1
__set_special_pids 95 94 -1
unregister_console 126 121 -5
start_kernel 546 541 -5
register_console 593 588 -5
copy_from_user 45 40 -5
sys_setsid 128 120 -8
sys_vhangup 32 19 -13
do_exit 1543 1526 -17
bitmap_zero 60 40 -20
arch_local_irq_save 137 117 -20
release_task 674 652 -22
static.spin_unlock_irqrestore 308 260 -48
Signed-off-by: Joe Millenbach <jmillenbach@gmail.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When st driver decodes protocol index received from raw data,
it does a value convert from "char" to "int". Because it's sign
extension from bit8 to bit32, the "int" value maybe minus, in
another word, the protocol index might be minus, but driver doesn't
filter such case and may continue access memory pointed by this
minus index.
This patch is to change the variable type of index from "int"
to "unsigned char", so that it avoids do such kind of type
conversion.
cc: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: channing <chao.bi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the pointless NULL dereference above the NULL test.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Before calling on any of the platform hooks, shared transport driver checks
for the validity of the platform hooks as to whether it is provided or not.
A wrong function was being checked for, before the chip_awake hook was called
by the HCI-LL sleep logic handler. This patch corrects the check.
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If the read firmware version response from the chip is split into multiple
frames of UART buffer being received by the host, the TI-ST driver as of today
is unable to put the pieces of response together unlike other responses.
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Be nice to CPU and don't hog the resources, use a nice wait_for_interruptible
timeout for completions instead of wait_for_timeout which is
non-interruptible.
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If the communication with the WiLink breaks down for whatever reasons & the
ti-st driver is unable to un-install the line-discipline during clean-up in
st_kim_stop, the GPIO should be held low (BT_EN=0) & the platform's chip
disable hook shall also be called.
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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remove sparse warnings by assigning right storage specifiers to functions and
also clean-up the declarations in the include/linux/ti_wilink_st.h
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A platform hook to enable/disable the chip was introduced to perform specific
activities to power-up and power-down the WL chip.
Moving the power-up/down sequence also there makes more sense, since different
platforms have begun to have their own ways to power-up/down the chip.
This patch removes all of the gpio handling done by the driver in
st_kim_start/st_kim_stop & any of the gpio request done in the probe function.
Signed-off-by: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Linus Torvalds
Greg Kroah-Hartman
Thomas Gleixner
Colin Ian King
Yangtao Li
Anton Vasilyev
Geert Uytterhoeven
Jia-Ju Bai
Arvind Yadav
Johannes Berg
Daniel Wagner
Sudip Mukherjee
Muhammad Hamza Farooq
Jürg Billeter
Rob Herring
Krzysztof Kozlowski
Dan Carpenter
Nicholas Mc Guire
Gigi Joseph
Wolfram Sang
Lee Jones
Enric Balletbo i Serra
Robin van der Gracht
Paul Gortmaker
Peter Hurley
Oleksandr Kozaruk
Jingoo Han
Luciano Coelho
Joe Millenbach
channing
Matthias Kaehlcke
Wei Yongjun
Pavan Savoy